197820105

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{38449}}^1$

素因数の和:38478

約数の個数: 32

約数和(自身を含む): 369120000

約数和(自身を除く): 171299895

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 5145, 38449, 115347, 192245, 269143, 576735, 807429, 1345715, 1884001, 4037145, 5652003, 9420005, 13188007, 28260015, 39564021, 65940035, 197820105]

約数ペア:

[(1, 197820105), (3, 65940035), (5, 39564021), (7, 28260015), (15, 13188007), (21, 9420005), (35, 5652003), (49, 4037145), (105, 1884001), (147, 1345715), (245, 807429), (343, 576735), (735, 269143), (1029, 192245), (1715, 115347), (5145, 38449)]